南非robertiae (rhodophyia, plocamiae)的恢复和该属物种的更新

IF 1.5 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY Phycologia Pub Date : 2023-03-04 DOI:10.1080/00318884.2023.2174342
M. M. Reddy, Jamie du Plessis, R. Roodt‐Wilding, Robert J. Anderson, J. Bolton
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引用次数: 3

摘要

形态多样且分布广泛的Plocamium红藻最近成为生物活性化合物的来源,在制药工业中具有潜在的应用前景。然而,物种鉴定和该群体的分类仍然存在问题。因此,对南非Plocamium分类学的初步贡献是利用形态和分子方法结合现有文献进行的。基于分子和形态学证据,robertiae被恢复为一个独特的物种,而来自西班牙的Plocamium raphelisianum被置于P. suhrii的同义词。沿南非海岸,苏氏p.s uhrii的个体在不同的生物区域存在遗传差异,这需要进一步的研究。与以前的报道相反,我们证实了在南非没有两个澳大利亚物种,P. microcladioides和P. mertensii,这两个物种以前被错误识别。后一种可能代表了南非一种未被描述的新物种。另外两个物种也根据DNA鉴定,但需要进一步的形态学评估。我们现在以不同的分类学置信度认识到P. robertiae和其他8个已命名的物种,以及另外5个分类群,并将P. microcladioides和P. mertensii从南非植物区系中排除。本研究将Plocamium生物多样性评估的物种数量增加了一倍,扩大了P. suhrii的分布范围。尽管我们的发现在DNA数据的帮助下做出了初步评估,但对南非Plocamium分类的全面了解还远远不够。
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The reinstatement of Plocamium robertiae (Rhodophyta, Plocamiales) and an updated species inventory of the genus in South Africa
ABSTRACT The morphologically diverse and widespread red algal genus Plocamium has recently emerged as a source of bioactive compounds with potential application in the pharmaceutical industry. However, species identification and the taxonomy of the group remains problematic. An initial contribution to the taxonomy of Plocamium in South Africa was therefore carried out using combined morphological and molecular approaches and existing literature. Plocamium robertiae is reinstated as a distinct species based on molecular and morphological evidence, while Plocamium raphelisianum, a species from Spain, is placed in synonymy with P. suhrii. Along the South African coast, individuals of P. suhrii were genetically divergent in different bioregions and will require further investigation. Contrary to previous reports, we confirm the absence in South Africa of two Australasian species, P. microcladioides and P. mertensii, which were previosuly misidentified. The latter species likely represents a new, undescribed species in South Africa. Two additional species were also identified based on DNA but require further morphological assessment. We now recognize P. robertiae, along with eight other named species, plus five additional taxa, with varying levels of taxonomic confidence, and exclude P. microcladioides and P. mertensii from the South African flora. This study doubles the number of species recognized since the last biodiversity assessment of Plocamium and expands the distributional range of P. suhrii. Although our findings contribute an initial assessment assisted by DNA data, a full understanding of the taxonomy of Plocamium in South Africa is far from complete.
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来源期刊
Phycologia
Phycologia 生物-海洋与淡水生物学
CiteScore
3.10
自引率
18.80%
发文量
54
审稿时长
3 months
期刊介绍: Phycologia is published bimonthly by the International Phycological Society and serves as a publishing medium for information about any aspect of phycology. Membership in the Society is not necessary for publication. Submitted manuscripts cannot be previously published or submitted elsewhere. Copyright ownership of all accepted papers is held by the International Phycological Society.
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